The rising threat of fungicide resistance in plant pathogenic fungi: Botrytis as a case study

Journal of Chemical Biology

Matthias Hahn¹ 

[1] Department of Biology, University of Kaiserslautern, P.O. box 3049, Kaiserslautern, Germany

关键词: Fungicide resistance;    Multiresistant;    Drug efflux transporter;    Resistance mutation;   

DOI  :  10.1007/s12154-014-0113-1

学科分类：分子生物学，细胞生物学和基因

来源: Springer

【 摘 要 】

The introduction of site-specific fungicides almost 50 years ago has revolutionized chemical plant protection, providing highly efficient, low toxicity compounds for control of fungal diseases. However, it was soon discovered that plant pathogenic fungi can adapt to fungicide treatments by mutations leading to resistance and loss of fungicide efficacy. The grey mould fungus Botrytis cinerea, a major cause of pre- and post-harvest losses in fruit and vegetable production, is notorious as a ‘high risk’ organism for rapid resistance development. In this review, the mechanisms and the history of fungicide resistance in Botrytis are outlined. The introduction of new fungicide classes for grey mould control was always followed by the appearance of resistance in field populations. In addition to target site resistance, B. cinerea has also developed a resistance mechanism based on drug efflux transport. Excessive spraying programmes have resulted in the selection of multiresistant strains in several countries, in particular in strawberry fields. The rapid erosion of fungicide activity against these strains represents a major challenge for the future of fungicides against Botrytis. To maintain adequate protection of intensive cultures against grey mould, strict implementation of resistance management measures are required as well as alternative strategies with non-chemical products.

【 授权许可】

Unknown